<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <!-- 小logo以及系统名称 -->
        <img src="../assets/MagicInfo.png" alt="">
        <span>2325管理系统</span>
      </div>
    <!-- 退出按钮 -->
    <el-button
      type="info"
      @click="logout"
    >退出</el-button>
    </el-header>
    <!-- 主题区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏细分 -->
       <el-menu
      background-color="#FFC4A9"
      text-color="#fff"
      active-text-color="#ff8500"
      unique-opened
      :collapse="isCollapse"
      :collapse-transition="false"
      :router="true"
      :default-active="activePath"
      >
      <!-- 一个菜单模块 -->
      <el-submenu :index="item.id + ''" v-for="item in menuList" :key='item.id'>
        <!-- 一级菜单区域 -->
        <template slot="title">
          <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key='subItem.id'
        @click="saveNavState('/' + subItem.path)">
          <template slot="title">
          <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
        <!-- 二级菜单结束 -->
      </el-submenu>
      <!-- 菜单模块结束 -->
    </el-menu>
      </el-aside>
      <!-- 主题区域 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data () {
    return {
      menuList: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      // 副标题选中时保存的变量
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$message('退出登录啦')
      this.$router.push('/login')
    },
    // 获取侧边栏所有菜单
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menuList = res.data
      console.log(res)
    },
    // 侧边栏上方切换按钮事件
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      // 保存连接激活状态
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>

<style lang="less" scoped>
.home-container{
  height: 100%;
}
.el-header{
  background-color: rgb(255, 89, 13);
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  font-size: 20px;
  >div{
    display: flex;
    align-items: center;
    span{
      margin-left: 10px;
    }
  }
}
.el-aside{
  background-color: rgb(255, 89, 13);
  .el-menu {
    border-right: none
  }
}
.el-main{
  background-color: #c7c7c7;
}
.iconfont{
  margin-right: 10px;
}
.toggle-button{
  background-color: #fff;
  font-size: 10px;
  line-height: 24px;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
